HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1508860Generated: November 1, 2026
4-Aminobutanamide → 4-((2-(3-Chlorophenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)amino)butanamide
https://huagongshe.com/reaction/1508860
Participants
| Role | Name | HCID | Charge |
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| Reactant | 4-Aminobutanamide | HCID 18615 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | 4-chloro-2-(3-chlorophenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidine | HCID 21882677 | — |
| Solvent | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Product | 4-((2-(3-Chlorophenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)amino)butanamide | HCID 90112541 | 61% |
Reaction Steps
A solution of 4-chloro-2-(3-chlorophenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidine (0.032 g, 0.12 mmol), 4-aminobutanamide (0.061 g, 0.60 mmol), and N,N-diisopropylethylamine (0.031 g, 0.24 mmol) in NMP (3 mL) was heated at 90° C. overnight. After this time, the reaction mixture was cooled, diluted water, and extracted with ethyl acetate. The combined organic layer was dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated to afford the title compound (0.019 g, 61%) as a white solid. MW=330.81. 1H NMR (DMSO-d6, 500 MHz) δ 8.31-8.26 (m, 2H), 7.51-7.46 (m, 2H), 7.27 (s, 1H), 7.03 (t, J=5.5 Hz, 1H), 6.73 (s, 1H), 3.48 (q, J=6.7 Hz, 2H), 2.81 (t, J=7.6 Hz, 2H), 2.68 (t, J=7.3 Hz, 2H), 2.16 (t, J=7.6 Hz, 2H), 2.03 (quin, J=7.6 Hz, 2H), 1.84 (quin, J=7.3 Hz, 2H); APCI MS m/z 331 [M+H]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09221843B2 |
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| Source dataset | uspto-grants-2015_12 |
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| ORD ID | ord-c351d794903f4a8494a6b880dcda415c |
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| Source note | uspto-grants-2015_12 |
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